Array Cascade Addition calculation

I have several arrays and what I need to do is create a loop that calculates the values of the adition of each value of an array with each value of another array as show below:

Array:

A = [A1 A2 A3] B = [B1 B2 B3] C = [C1 C2 C3]

Needed Values:

D = A1+B1+C1 E = A1+B1+C2 F = A1+B1+C3 G = A1+B2+C1 H = A1+B2+C2 I = A1+B2+C3 .... and so on

On a side note, what is the MATLAB notation for a specific value of an array such as A(1) = A1

Answer 1

[James Tursa]

One way using implicit array expansion:

D = A(:) + reshape(B,1,[]) + reshape(C,1,1,[]);

Your results are the elements of D.

I'm not sure what you are asking about A(1) vs A1. A(1) is the MATLAB notation for the 1st element of variable A. A1 would be the name of a different variable ... it has no relationship to variable A.

[Andrew Tubbs]

What I get with this is jumbles of information, where only the first value is correct. To be more specific each value of each array is an 11 value array itself and I need a loop that automatically that spits out the summation array.

[Steven Lord]

A = [1 2 4];
B = [8 16 32];
C = [64 128 256];
D = reshape(A, 3, 1) + reshape(B, 1, 3) + reshape(C, 1, 1, 3)

D = 
D(:,:,1) =

    73    81    97
    74    82    98
    76    84   100


D(:,:,2) =

   137   145   161
   138   146   162
   140   148   164


D(:,:,3) =

   265   273   289
   266   274   290
   268   276   292

[A(2)+B(3)+C(1), D(2, 3, 1)]

ans = 1×2

98 98